Early Christian art and architecture were created by the first followers of Jesus Christ, who lived over 2000 years ago. They didn't have cameras or smartphones like we do today, so they used art and architecture to tell stories about Jesus and the teachings of the Bible.
Some early Christian art was done on walls of buildings, called frescoes, which would often depict Jesus, saints, and other important figures from the Bible. The art was made using special paints and tools, and the artists would carefully choose colors and symbols to convey their message.
Early Christian architecture was also important, especially churches, which were places where Christians would gather to pray and worship. Churches were often built with special features that connected to religious stories, such as high ceilings and stained glass windows to symbolize heaven, and a cross on the roof to symbolize Jesus' sacrifice.
Over time, the art and architecture of Christianity evolved, taking on new styles and influences from different cultures. But even today, we can still see many examples of early Christian art and architecture around the world, serving as reminders of the roots of the religion we know today.